Influence of hydraulic retention time on indigenous microalgae and activated sludge process

Anbalagan, Anbarasan; Schwede, Sebastian; Lindberg, Carl; Nehrenheim, Emma

doi:10.1016/j.watres.2016.01.027

Cited by 81 publications

(36 citation statements)

References 51 publications

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“…56 % and 66 %, respectively). Generally, the stirring condition mode showed better efficiency for phosphorus and COD removal and saved energy to operate the system, similar to the results of published studies [11]. …”

Section: Effect Of Dissolved Oxygen (Do) To Treatment Efficiencysupporting

confidence: 88%

“…That might be resulted to reduce the amount of CO 2 produced by bacteria in activated sludge, then caused a shortage for the photosynthesis of microalgae. In addition, under CO 2 high efficiency (76 %), which due to being synthesized for microorganism biomass of consortium and/or absorbed capability on activated sludge flocs [11].…”

Section: Effect Of the Inoculum Ratio Of Chlorella Spa8 And Activatementioning

confidence: 99%

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Factors That Affect the Removal of Nitrogen and Phosphorous From Piggery Wastewater Using Microalgae –Bacteria Consortium

Chien¹

2018

JST

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Currently, most piggery farms in Viet Nam use biogas tank as a primary wastewater treatment system. However, even after the anaerobic treatment process, the concentration of nutrients was still high and exceeded the national effluent standard. If the wastewater was directly discharged into the water bodies, it was certainly hazardous to the environment and causes eutrophication. To remove the residual nutrients, several processes have been used, mostly chemical processes. The disadvantages of those chemical processes are high cost and the increase in amount of sludge. In this study, the biological method using microalgae-bacteria consortium was applied for the removal of nitrogen and phosphorous from wastewater from biogas treatment process. This study focused on factors which affect nitrogen and phosphorous removal efficiency in a batch reactor using microalgae-bacterial consortium. Studying on Chlorella sp A8. Activated sludge co-cultivation at different ratio (Chl/AS) gave good results in hydraulic retention time of 20 to 24 hours when C/N in wastewater was 4/1(m/m). In the fully mixing condition, DO range from 0.3 -0.5 mg O 2 /L, the highest removal efficiencies of COD was 71 -76 %; NH 4 + -N was 40 -47 % and PO 4 3--P was 64 -77 % at Chl /As was 1.5:1, 2.5:1 and 1:1( g/g).

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Section: Effect Of Dissolved Oxygen (Do) To Treatment Efficiencysupporting

confidence: 88%

Section: Effect Of the Inoculum Ratio Of Chlorella Spa8 And Activatementioning

confidence: 99%

Factors That Affect the Removal of Nitrogen and Phosphorous From Piggery Wastewater Using Microalgae –Bacteria Consortium

Chien¹

2018

JST

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“…Among the possible renewable energy sources biomass from microalgae is a promising 26 resource. Compared to other biomass resources the growth rate is high and it can be 27 cultivated without competition to food production on valuable land areas.…”

Section: Introductionmentioning

confidence: 99%

Co-digestion of sewage sludge and microalgae – Biogas production investigations

et al. 2018

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“…The activated sludge process is the most widely used in wastewater treatment plants (WWTPs) because it has the characteristics of low operating cost, simple operation and high processing efficiencies. 1,2 A large amount of waste activated sludge (WAS) is produced worldwide. It was reported that the amount of WAS in China is expected to rise to 34 million metric tonnes (at a moisture content of 80%) in 2018, and approximately 80% of it would be disposed unsafely, which would pose a great threat to the environment.…”

Section: Introductionmentioning

confidence: 99%

Enhanced sludge anaerobic fermentation using microwave pretreatment combined with biosurfactant alkyl polyglycoside

2017

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Influence of hydraulic retention time on indigenous microalgae and activated sludge process

Cited by 81 publications

References 51 publications

Factors That Affect the Removal of Nitrogen and Phosphorous From Piggery Wastewater Using Microalgae –Bacteria Consortium

Factors That Affect the Removal of Nitrogen and Phosphorous From Piggery Wastewater Using Microalgae –Bacteria Consortium

Co-digestion of sewage sludge and microalgae – Biogas production investigations

Enhanced sludge anaerobic fermentation using microwave pretreatment combined with biosurfactant alkyl polyglycoside

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